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Atmospheric science

Enigma of the recent methane budget

The previously increasing atmospheric methane concentration has inexplicably stalled over the past three decades. This may be due to a fall in fossil-fuel emissions or to farming practices that are curtailing microbial sources. See Letters p.194 & p.198

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Figure 1: Changes in global atmospheric methane over the past three decades.


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Correspondence to Martin Heimann.

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Heimann, M. Enigma of the recent methane budget. Nature 476, 157–158 (2011).

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